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请问是什么问题？软件的还是硬件的？
我不知道如何写程序。能否提供一个例程？
我们专家zhou Jian的一段程序。你可以在AM335论坛上问他
如果用GPMC CS3做为16C554的片选寻址空间，那么驱动里需要单独配一下CS3的那7个寄存器，timming请参考：
.sync_clk = 0,
.cs_on = 0, .cs_rd_off = 90, .cs_wr_off = 70,
.adv_on = 0, .adv_rd_off = 15, .adv_wr_off = 15, .we_off = 65, .oe_off = 70,
.access = 90, .rd_cycle = 140, .wr_cycle = 90,
.wr_access = 90, .wr_data_mux_bus = 0,
谢谢！AM335X我不会，最好是MSP430或者DSP2000，5000
请问DSP用什么接口和16C554相连？
板子还没出来呢？搞硬件的说用CPLD给5509扩展IO口
